Results 21 to 30 of about 9,570,884 (292)

The effect of alternative detergent builders on the nutrient removal activated sludge sewage treatment process [PDF]

open access: yes, 1993
Includes bibliography.Phosphate is an essential nutrient for photosynthetic plant growth. However if over-supplied in a water body, it leads to excessive algal growth, a condition is termed eutrophication.
Kaschula, Wendy A
core   +1 more source

The Comparison of Different Nutrient Sources in Development of Aerobic Granular Sludge

open access: yesMATEC Web of Conferences, 2018
Aerobic granular sludge (AGS) as recent biological wastewater treatment has been developed in a modified sequencing batch reactor (SBR) using real textile wastewater.
Choerudin C.   +2 more
doaj   +1 more source

Performance of artificial medium for removing nutrients in eutrophic water

open access: yesJournal of Lake Sciences, 2007
Pilot test was made for the removal of nutrients in eutrophic source water through the use of enriched mi- crobes by artificial medium.The results indicated that the nutrient elements removal efficiency enhanced as the me- dium density and hydraulic retention time(HRT)increased.The removal rates of total nitrogen(TN),total phos- phorus(TP),ammoniacal ...
JI Rongping, LV Xiwu, LI Xianning
openaire   +2 more sources

Enhanced Nutrient Removal from Freshwater Through Microbial Fuel Cells: The Influence of External Resistances

open access: yesPollutants
Eutrophication is a major threat to freshwater ecosystems, leading to harmful algal blooms, biodiversity loss, and hypoxia. Excessive nutrient loading, primarily from nitrates and phosphates, is driven by fertilizer runoff, sewage discharge, and ...
Aaron Bain   +4 more
doaj   +1 more source

Improving Urban Stormwater Runoff Quality by Nutrient Removal through Floating Treatment Wetlands and Vegetation Harvest

open access: yesScientific Reports, 2017
Two floating treatment wetlands (FTWs) in experimental tanks were compared in terms of their effectiveness on removing nutrients. The results showed that the FTWs were dominated by emergent wetland plants and were constructed to remove nutrients from ...
Bing Xu   +5 more
doaj   +1 more source

Nutrient Removal and Membrane Performance of an Algae Membrane Photobioreactor in Urban Wastewater Regeneration

open access: yesMembranes, 2022
The increase in industry and population, together with the need for wastewater reuse, makes it necessary to implement new technologies in the circular economy framework. The aim of this research was to evaluate the quality of the effluent of an algae membrane photobioreactor for the treatment of the effluent of an urban wastewater treatment plant, to ...
Verónica Díaz   +5 more
openaire   +4 more sources

Nutrient removal from municipal wastewater by the microalga Chlorella vulgaris grown in a continuous system [PDF]

open access: yesبوم‌شناسی آبزیان, 2018
Nutrient inputs into the environments can cause eutrophication of aquatic ecosystems. Therefore, current experiment was carried out to investigate the effect of the initial nitrogen and phosphorus concentrations on nutrient removal performance of ...
Aref Pirbeigi   +4 more
doaj  

Performance evaluation and upgrade options for existing sequencing batch reactor for nutrient removal [PDF]

open access: yesMATEC Web of Conferences, 2019
Assessment and upgrade of existing sewage treatment plants (STPs) are necessary due to the revision of the existing effluent regulations which now monitors nutrients including ammonia, nitrate and phosphates.
Lantin Jahziel   +5 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Enhancement of Aerobic Granulation with -acyl Homoserine Lactone in Treatment Process for Anaerobic Digestion Sidestream [PDF]

open access: yes대한환경공학회지
Wastewater treatment plants face challenges in improving nutrient removal efficiency, recovering resources from sludge, and maintaining sustainable processes.
Eunyoung Lee   +3 more
doaj   +1 more source

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